C++中变量的长度

sizeof(char) = 1 bytes.

sizeof(short int) = 2 bytes.

sizeof(int) = 4 bytes.

sizeof(long int) = 4 bytes.

sizeof(long long int) = 8 bytes.

sizeof(unsigned long long int) = 8 bytes.

sizeof(float) = 4 bytes.

sizeof(double) = 8 bytes.

请按任意键继续. . .

 

计算机：WIN7、32位操作系统

源码：

#include <iostream>

#include <windows.h>

using namespace std;



int main()

{

    cout << "sizeof(char) = " << sizeof(char) << " bytes." << endl;



    cout << "sizeof(short int) = " << sizeof(short int) << " bytes." << endl;

    cout << "sizeof(int) = " << sizeof(int) << " bytes." << endl;

    cout << "sizeof(long int) = " << sizeof(long int) << " bytes." << endl;

    cout << "sizeof(long long int) = " << sizeof(long long int) << " bytes." << endl;

    cout << "sizeof(unsigned long long int) = " << sizeof(unsigned long long int) << " bytes." << endl;



    cout << "sizeof(float) = " << sizeof(float) << " bytes." << endl;

    cout << "sizeof(double) = " << sizeof(double) << " bytes." << endl;



    //getchar();

    system("pause");

    return 0;

}